Possible Gauge Theoretic Origin for Quark-Lepton Complementarity

Abstract

Similarity between the weak interaction properties of quarks and leptons has led to suggestions that the origin of lepton mixing angles may be related to those of quarks. In this paper, we present a gauge model based on $SU(2{)}_L\times SU(2{)}_R\times SU(4{)}_c$ group that leads to a new form for the quark lepton complementarity which predicts the solar neutrino mixing angle in terms of the Cabibbo angle for the case of inverted mass hierarchy for neutrinos. We also indicate how these ideas can be implemented in an $E_6$ inspired trinification $SU(3{)}_C\times SU(3{)}_L\times SU(3{)}_R$ model, which is more closely allied to string theory by the AdS/CFT correspondence.

9 pages, latex, no figures; presentation improved; results unchanged; minor typos corrected

References in corpus (1)

• ICTP Lectures on Theoretical Aspects of Neutrino Masses and Mixings

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